Waterproof watchcase



Oct. 14, 1952 H. DINSTMAN WATERPROOF wATcHcAsE Filed April 14. 1949 2 SHEETS- swam 1 INVENToR. HYMAN DLNS'IMAN BY moval or displacement. v

l located by engagement of said flange with an ac- The crystal, designated 3|, is provided with a basal perimetral iiange 32.

The bezel, marked as a whole 33, is, like the member 20, preferably cast, and incorporates main frame-like portion 34. portion in the present case, and as best shown in Fig. 1, has two long sides 34 and two'shorter sides 34 one oi which is also seen in "FigjZ at 34". At each end said bezel integrallycarries a pair of laterally spaced horns 35; each pair of such horns being spanned by a cross-pin 36 I for connecting, as illustrated, one end portion 31 or 38 of the wrist band.

Each two horns at a side of the bezel 33 are thus end prolongations of the side walls 34 of the frame-like portion of the bezel 33, which side walls are of the same cross-section as shown in Fig. 1 for the end walls 34" of said frame-like 'portion 34 of the bezel.

that the said end walls 34" nicely nt in place between said components and said member 20.

The hereinbefore mentioned gasket or packing is indicated at 39, and this is nested, as shown in Fig. 1, between the top surfaces of the member 20 and a perimetral marginal portion of the dial 25, on the one hand, and, on the other, the underside of the basal flange 32 of the crystal 3|; while an upper perimetrally extending and inturn'ed flange on the top of the framelike portion 34 of the bezel 33 is shaped-to bear down on the upper side of said basal ange and also fit closely against the outer vertical wall extending perimetrally around the crystal, as shown in Fig. 1.

The bights of the top hooks 22 of the components 2| of the member '20 are semi-circularly rounded to nt the cylindricity of a pair of lock-1' ing pins 40; a pair of such pins being provided,

' and these being the hereinabove mentioned thin of said horns and one of said pins, in Fig.`3.

In the case of each pin 40 and its receiving apertures 4|, there is a vertical offsetting as between such a pin and its said receiving apertures, suiiicient to permit a pin to be sent readily through its said apertures when opposing forces are applied in the direction of the arrows 43 and 44 in Fig. 1, to a value such that compression of the gasket or packing 39 will be so great that a watertight joint is established at opposite sides of said gasket. Consequently, when said forces 43 and 44 are relieved, the

' elastic action of the stiffly elastically compressible gasket will, without deteriorating the wa tertight joint, cause each pin 40 to be irreinovably clamped against casual or accidental re- Referring in the latter connection to Figs. 7, a very simple and practicable'appliance is here illustrated for readily applying said forces 43 and 44, or, more accurately, for applying the force 43 and vmaintaining the force v44 actually as a reaction factor.

This appliance may be, as shown, a C-clamp This frame-like 4 45 having the usual fixed jaw 46 and a movable jaw 4'| coupled by a ball and socket joint 4B to a screw 49 havingpa turn-bar 5U; said mov- Vv,able jaw 4'1" being here arranged tobfe restrained against vrotational movement during its advance j, toward the xed jaw 46 by means including as shown a fork 5| formed at one end of said jaw T41..

Also,y in the case of the appliance 45, the same is shown'as having at the top of the jaw 46 a surface which, perpendicular to the axis of the screw 49, is not only fayed or flush or plane, but

is topped by a framing addition 52 of fairly soft yet highly resilient rubber and secured in place as by way of a suitable plurality of rivets 53 having upper heads as shown in Fig. A'5 and with these heads located well down' in the apertures 54 through the addition 52 and the iixed jaw 4B atthe appointed locations of said rivets.

- The central opening 54|au in said addition 52 is of a size and shape such that'withftheparts of Fig. 1 inverted, ythe'ftop arched portionof the crystal 3| may safely lie within said vopening and then the upper surface of the addition 52.en

" gages that perimetral portion of the frame-like portion 34 of the bezel .33 which is uppermost in Fig. l. I

Thus, justas the parts have to be subjected to said forces 43 and 44, as `by the use of the C- clamp 45, for insertion of the lockingpins 40, to establish the assembly as shown in Fig. 1, that assembly has to be subjected to said forces,

as again in said clamp, before thepins ,may

' will be noted, all the advantages of the invention are achieved, yet the components 2|'.0f the bezel are omitted,. and, instead, two channel tments 55 are present, each of these havinga rib or lug 56, and with each of the lugs 56 shaped to nt closely in a recess or groove 51 formed across, the exterior of an end wall ofthe framelike portion 34a of the bezel 33e. Said framelike portion 348", across its opposite ends, isthe same cross-section as indicated at the left'in Fig. 8; and said'portion 34|, along its sides, is of rectangular Vcross-section as indicated by the fragmentary elevational showing at the leftfin Fig. 8. As willf further be noted; the crystal 3P is not centrally domed, vas in the case of the crystal 3|, but, instead, has a. ilat central roof portion attended by aperimetral beveling as indicated. Note, also, that here thehorns 35a are of different design than the horns 35.

Referring'nextvparticularly to Figs. 13 and 14,

-in the embodiment here shown, `and by which also all the advantages of the invention may be obtained, the parts to which arer applied reference numerals with the suffix b added correspond, respectively, to Ithe parts to which have been rapplied the same reference numerals without a suflix in Figs. vl to 4. In this structure. equivalents ofthe components 2lb are integral with they back memberZb, butvwith these components 2|b so formed, it will be'noted, that one of them, vthe one at the right in Fig. 13, has its hook 22b in the shape of an inverted triangle, and that ythe other of them, thisV at the right in Fig. 13, is constituted'as a groove; here again,

5 it will be observed, a crystal 3| b substantially the same as the crystal 3| is included.

Referring next particularly to Fig. 15, in the embodiment here shown, wherein also all the advantages of the invention may be had, the parts to which are applied reference numerals with the suix c added correspond, respectively, to the parts to which have been applied the same reference numerals without a suii'ix in Figs. 1 to 4. It will be noted in regard to this structure that, while the frame-like portion 34C of the bezel 33C is like the corresponding portion of the bezel 33 and a pair of channel tments 55 is present, these tments have rounded instead of squared-off tops like the channel fitments 55.

Referring nex-t particularly to Figs. 16 and 17, in the embodiment here shown, and likewisel by which all of the advantages of the invention are secured, the parts to which are applied reference numerals with the suiiix d added correspond, respectively, to the parts to which have been applied the same reference numerals without a suffix in IFigs. l to 4. In this structure, it will be noted, the horns 35d are of a further different design, and the crystal ySid is also of a further diierent design. Moreover, in this structure, the equivalent for the backing member 23 is a backing structure including two separate and preferably separately cast members, so made as to be interttable to establish the assembly shown; with one of said parts including a perimetrally slightly cupped floor wall portion and with the components 2id integrally carried by said wall portion, and with the other of the two parts of said backing structure comprising Y a frame-like sub-structure incorporating a side wall formation continuously extending all around the same and resting at its bottom on the upper rim of such cup and carrying at its top a wall 39d corresponding to the wall 30.

While I have illustrated and described the preerred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as dened in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is:

1. A waterproof wrist watch case comprising a backing element having an internal perimetral shoulder, a watch crystal having an external perimetral shoulder superimposed on said shoulder of said backing element, a frame-like elastic gasket interposed between said shoulders, a bezel tted over said crystal and having an internal frame-like portion fitted down on said shoulder of said crystal, a pair of laterally spaced horns extended from opposite ends of said bezel, each pair of horns having laterally aligned holes, components extended upward from the ends of said backing element and between the respective horns of said bezel, pins extended through the holes of said horns and along the outer faces of said components, and downwardly facing hooks continuing from the top ends of said components and fitted over said pins between said horns joining said backing element and said bezel to compress said gasket between said shoulders.

2. A waterproof wrist watch case comprising a backing element having an internal perimetral shoulder, a watch crystal having an external perimetral shoulder superimposed on said shoulder of said backing element, a frame-like elastic gasket interposed between said shoulders, a bezel fitted over said crystal and having an internal frame-like portion tted down on said shoulder of said crystal, a pair of laterally spaced horns extended from opposite ends of said bezel, each pair of horns having laterally aligned holes, components extended upward from the ends of said backing element and between the respective horns of said bezel, pins extended through the holes of said horns and along the outer faces of said components, and downwardly facing hooks continuing from the top ends of said components and fitted over said pins between said horns joining said backing element and said bezel to compress said gasket between said shoulders, said components being of a width to occupy the full space between said pairs of horns and spaced from the ends of said backing element `forming pockets between said pairs of horns, and end walls depending from said bezel between said pairs of horns and received snugly within said pockets.

HYMAN DINSTMAN.

REFERENCES CITED The following references are of record in the le of this patent:

. FOREIGN PATENTS v Date 

